package cn.wolfcode.wolf2w.service.impl;

import cn.wolfcode.wolf2w.cache.vo.StrategyStatisVO;
import cn.wolfcode.wolf2w.domain.Destination;
import cn.wolfcode.wolf2w.domain.Strategy;
import cn.wolfcode.wolf2w.domain.StrategyCatalog;
import cn.wolfcode.wolf2w.domain.StrategyTheme;
import cn.wolfcode.wolf2w.query.StrategyQuery;
import cn.wolfcode.wolf2w.repository.StrategyRepository;
import cn.wolfcode.wolf2w.service.IDestinationService;
import cn.wolfcode.wolf2w.service.IStrategyCatalogService;
import cn.wolfcode.wolf2w.service.IStrategyService;
import cn.wolfcode.wolf2w.service.IStrategyThemeService;
import cn.wolfcode.wolf2w.util.DBHelper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.data.mongodb.core.query.Update;
import org.springframework.stereotype.Service;
import org.springframework.util.StringUtils;

import java.util.Date;
import java.util.List;


@Service
//@Transactional mongodb事务必须是复制集方式
public class StrategyServiceImpl implements IStrategyService{


    @Autowired
    private StrategyRepository repository;


    @Autowired
    private MongoTemplate template;
    @Autowired
    private IStrategyCatalogService strategyCatalogService;
    @Autowired
    private IStrategyThemeService strategyThemeService;
    @Autowired
    private IDestinationService destinationService;

    @Override
    public void save(Strategy strategy) {
        strategy.setId(null);
        repository.save(strategy);
    }

    @Override
    public void update(Strategy strategy) {
        repository.save(strategy);
    }

    @Override
    public void delete(String id) {
        repository.deleteById(id);
    }

    @Override
    public Strategy get(String id) {
        return repository.findById(id).orElse(null);
    }

    @Override
    public List<Strategy> list() {
        return repository.findAll();
    }

    @Override
    public Page<Strategy> query(StrategyQuery qo) {
        //查询对象
        Query query = new Query();

        if (StringUtils.hasLength(qo.getDestId())){
            query.addCriteria(Criteria.where("destId").is(qo.getDestId()));
        }
        if (StringUtils.hasLength(qo.getThemeId())){
            query.addCriteria(Criteria.where("themeId").is(qo.getThemeId()));
        }

        Long total = template.count(query, Strategy.class);
        if(total == 0){
            return Page.empty();//空的分页对象
        }
        Pageable pageable = PageRequest.of(qo.getCurrentPage()-1,qo.getPageSize(), Sort.Direction.DESC,"_id");
        return DBHelper.query(template,Strategy.class,query,pageable);
    }

    @Override
    public void saveOrUpdate(Strategy strategy) {

        //目的地id
        StrategyCatalog catalog = strategyCatalogService.get(strategy.getCatalogId());
        strategy.setDestId(catalog.getDestId());
        //目的地名称
        strategy.setDestName(catalog.getDestName());
        //主体名称
        StrategyTheme theme = strategyThemeService.get(strategy.getThemeId());
        strategy.setThemeName(theme.getName());
        //分类名称
        strategy.setCatalogName(catalog.getName());
        //是否为国外
        List<Destination> toasts = destinationService.queryToasts(catalog.getDestId());
        if (toasts!=null && toasts.size()>0){
            Destination dest = toasts.get(0);
            if ("中国".equals(dest.getName())){
                //国内
                strategy.setIsabroad(Strategy.ABROAD_NO);
            }else {
                //国外
                strategy.setIsabroad(Strategy.ABROAD_YES);

            }
        }


        if(StringUtils.hasLength(strategy.getId())){
            //更新
            //页面更新的数据,刚好和集合中字段个数一致
            //这种操作等价于全量更新

            //查询
            Strategy temp = this.get(strategy.getId());
            //替换
            strategy.setCreateTime(temp.getCreateTime());
            strategy.setViewnum(temp.getViewnum());
            strategy.setReplynum(temp.getReplynum());
            strategy.setThumbsupnum(temp.getThumbsupnum());
            strategy.setFavornum(temp.getFavornum());
            strategy.setSharenum(temp.getSharenum());
            //更新
            this.update(strategy);
        }else {
            //保存
            //创建时间
            strategy.setCreateTime(new Date());
            this.save(strategy);
        }
    }

    @Override
    public void changeState(String id, int state) {
        //部分修改字段
        Query query = new Query();
        query.addCriteria(Criteria.where("_id").is(id));
        Update update = new Update();
        update.set("state",state);
        template.updateMulti(query,update,Strategy.class);
    }

    @Override
    public List<Strategy> queryCatalogId(String id) {

        return repository.findByCatalogId(id);
    }

    @Override
    public List<Strategy> queryViewnumTop3(String destId) {
        //目的地id必须指定
        //点击量排序
        //截取前三个
        Pageable pageable = PageRequest.of(0,3, Sort.Direction.DESC,"viewnum");
        List<Strategy> list =repository.findByDestId(destId,pageable);
        return list;
    }

    @Override
    public void updateStrategyVo(StrategyStatisVO vo) {
        Query query = new Query();
        query.addCriteria(Criteria.where("_id").is(vo.getStrategyId()));
        Update update = new Update();
        update.set("viewnum",vo.getViewnum());
        update.set("replynum",vo.getReplynum());
        update.set("favornum",vo.getFavornum());
        update.set("sharenum",vo.getSharenum());
        update.set("thumbsupnum",vo.getThumbsupnum());
        template.updateMulti(query,update,Strategy.class);

    }

    @Override
    public List<Strategy> queryByDestName(String destName) {
        return repository.findByDestName(destName);
    }

}
